Αποτελέσματα Αναζήτησης
The Confederate Cipher Disc was a mechanical wheel cipher consisting of two concentric discs, each with the 26 letters of the Latin alphabet, that was used for the encryption of secret messages of the Confederacy during the American Civil War (1861-1865).
- Giddings Field Message-Book
This US Army Cipher Disk was similar to the Confederate...
- Giddings Field Message-Book
The Confederate Cipher Disk is made of brass. The outer disk has a diameter of approx. 2 1/4 inch, whilst the inner disk measures approx 1 1/2 inch. On each of the disks, the alphabet is written out clockwise in the usual order (A-Z).
Cipher letters of December 1863 from J.H. Cammack, a Confederate conspirator in New York, to Richmond employed a hieroglyphic substitution cipher. Although it used six different alphabets, it was deciphered by War Department cipher operators in Washington.
The cipher disk came into large· scale use in the United States for the first time in the Civil War. The Federals' Chief Signal Officer patented a version of it, very similar to the original Italian disk, for use in flag signaling.
CONFEDERATE CODE DISC. Front view: Brass mechanical wheel cipher consisting of two concentric discs that share a common axle, each with the 26 letters from the Latin alphabet written out clockwise. Outer disc approx. 57mm dia., inner disc approx. 41mm. The inner disc is stamped at center CSA / S.S. (Confederate States of America Secret Service).
New invention of radio and telephone transformed war strategy to include air force, navy, and army at all levels. Information, collaboration, intervention in war by government leaders. Cipher technology was the same as in the Civil War, but now with more known methods of cryptanalysis.
24 Αυγ 2018 · Details the decryption and historical background of a Confederate message in a grille cipher system (Rochford's (Rochfort) Cipher) previously unknown to the cryptography of the U. S. Civil...
